October weather forecastKaanapali, HI

October
Weather in October
As October rolls in, Kaanapali welcomes slightly more rainfall, with measurements reaching 0.55" (14mm). Although there's a surge in precipitation, weather patterns stay fairly consistent with September. The extended cloud cover of 27% coupled with pleasant wind conditions provides a gentle respite from the Hawaiian sun. With cooler temperatures and sporadic rain, October signals the onset of fall.Temperature
The ushering in of October brings an average high-temperature of a still warm 79.5°F (26.4°C), closely mirroring the 79.7°F (26.5°C) of September. Throughout October, Kaanapali records a steady low-temperature average of 76.5°F (24.7°C), a minor decrease from its daytime counterpart.Humidity
The average relative humidity in October is 76%.Rainfall
In Kaanapali, in October, during 8.7 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, there are 112.6 rainfall days, and 7.91" (201mm) of precipitation is accumulated.Ocean temperature
In Kaanapali, in October, the average water temperature is 79.7°F (26.5°C).Note: Ideal surface water temperatures for any water activity fall between 77°F (25°C) and 84.2°F (29°C), offering maximum enjoyment for lengthened periods.
Daylight
The average length of the day in October is 11h and 40min.On the first day of the month, sunrise is at 6:18 am and sunset at 6:14 pm. On the last day of October, sunrise is at 6:29 am and sunset at 5:51 pm HST.
Sunshine
In October, the average sunshine in Kaanapali is 8.1h.UV index
The months with the highest UV index are July through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In October, the maximum UV index of 7 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Kaanapali, HI
- Average high temperature in October: 79.5°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in October: 76.5°F
The months with the highest average low temperature are August and October (76.5°F).
The coldest month (with the lowest average low temperature) is March (70.7°F).
Average pressure in October
Kaanapali, HI
- Average pressure in October: 29.97"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in October
Kaanapali, HI
- Average wind speed in October: 11.4mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).
Average humidity in October
Kaanapali, HI
- Average humidity in October: 76%
The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January, February, March, September and November (75%).
Average rainfall in October
Kaanapali, HI
- Average rainfall in October: 0.55"
The wettest month (with the highest rainfall) is March (1.1").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in October
Kaanapali, HI
- Average rainfall days in October: 8.7 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is November (7.7 days).
Average sea temperature in October
Kaanapali, HI
- Average sea temperature in October: 79.7°F
The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (76°F).
Average daylight in October /
Average sunshine in October
Kaanapali, HI
- Average daylight in October: 11h and 42min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in October: 8h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in October
Kaanapali, HI
- Average sunshine days in October: 18.4 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is March (12.6 days).
Average UV index in October
Kaanapali, HI
- Average UV index in October: 7
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in October
Kaanapali, HI
- Average cloud cover in October: 27
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in October
Kaanapali, HI
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





